Show and Tell Is the Readiness Skill Nobody Tests: Kindergarten Transition and Books 17 and 20

"I am Kit. I made The Steady Sippy. It holds your juice so it never tips over." Three sentences, said out loud to a room. That is the end of Book 17: Kit's Show and Tell, and it is the readiness skill no screening tool measures.

Where the topic comes from

The Spring 2026 issue of NAEYC's magazine Educating Young Children is devoted entirely to the preschool-to-kindergarten transition. The field is thinking about the handoff because the handoff got bigger. In California, transitional kindergarten is now open to every four-year-old, which means a whole year of school before kindergarten, in a school building, for children who were in a preschool room or at home a year earlier. The state's Master Plan for Early Learning and Care set that expansion in motion, and the 2024 Preschool/TK foundations were written to cover both settings with one document.

Ask a kindergarten teacher what a ready child looks like and letters and numbers come up late in the answer. What comes up first: can the child stand up in front of others and say what they did? Can they wait for a turn, take a breath when it goes wrong, and try again? Those are the Approaches to Learning foundations again, Engagement and Perseverance, wearing school clothes.

What Book 17 does

Tomorrow is show and tell and Kit is nervous. What if the words do not come out? Layla, a girl with a sticker-covered megaphone, breaks it into four steps. Say your name. Say what you made. Say why it is cool. Smile. Knowing the steps and doing them are two different things, so Kit practices. First on his stuffed animals, lined up on the bed. His voice wobbles. Then on his little sister Mia, who claps. Then in the mirror, and the smile becomes real. At school, deep breath, three sentences, and the class cheers.

The book is not about the invention. It is about rehearsal, and about the fact that brave is a thing you practice on stuffed animals first.

What Book 20 does

Kit's Promise is the series finale. Every friend from the nineteen books before it comes back, and Kit says the Inventor's Promise out loud in front of all of them. It is the last book in Phase 5, Becoming, and it is written as a beginning, not an ending. A child who has read all twenty arrives at TK or kindergarten with a word for themselves, and a room of characters who already said it first.

What you can do

• Run Layla's four steps at dinner once a week. Name, what you made, why it is cool, smile. Thirty seconds. Stuffed animals are an acceptable first audience.
• Take the same four steps to the first day. A child who can say "I am Sam, I built a tower, it was tall" to a new teacher has a first conversation ready.
• Read Book 20 the week before school starts. Then ask which friend they would bring.

The educator guide for Book 17 keeps three stuffed animals seated as a permanent practice audience and sends the mirror step home on the family sheet. The Book 20 guide acts the Inventor's Promise out line by line, binocular hands for LOOK, and runs it three times, faster each round.

Sources

• NAEYC, Educating Young Children, Spring 2026 issue on the preschool-to-kindergarten transition. www.naeyc.org/resources/pubs/eyc/spring2026
• California Department of Education, Transitional Kindergarten information page. www.cde.ca.gov/ci/gs/em/kinderinfo.asp
• California Health and Human Services Agency, Master Plan for Early Learning and Care: Making California For All Kids (December 2020). Original PDF. Archived copy on littlesparksbooks.com (PDF), saved in case the original moves.
• California Department of Education, California Preschool/Transitional Kindergarten Learning Foundations: Approaches to Learning (2024). Original PDF. Archived copy on littlesparksbooks.com (PDF), saved in case the original moves.

Chris Kuczynski is an engineer turned registered patent attorney, a preschool co-founder, and a dad. He is the author of Kit's Little Sparks, a 20-book STEM series that gives children ages 2 to 4 the social and emotional foundations of the inventor's mindset. It is the first of four age-tiered series for readers ages 2 to 12.